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Video file format.

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Presentation on theme: "Video file format."— Presentation transcript:

1 Video file format

2 outline AVI WMV MPEG

3 AVI AVI stands for Audio Video Interleave
AVI combines audio and video into a single file in a standard container to allow simultaneous playback. It's advantage is it's simple architecture, due to which AVI runs on a number of different systems like Windows, Mac's, Linux, Unix and is supported by all most popular web-browsers. Files of this format have .avi extension. Being developed by Microsoft in

4 What is WMV? WMV is short for Windows Media Video.
The video stream is often combined with an audio stream of Windows Media Audio. WMV deals with all types of video content. The advantage of the format it that it allows to compress large video files yet retaining considerably high quality. On-line radio stations use this format to deliver continuous flow of data

5 MPEG MPEG stands for the Motion Picture Experts Group,
MPEG-1 is initial video and audio compression standard. The video quality of this standard is almost as good as a VHS tape. MPEG-2 compared with MPEG-1, it has better quality of coding, multi-channel sound and higher image resolution. Due to all this MPEG-2 became standard in digital television and DVD industry. MPEG Audio Layer-3 is used for audio compression and creates almost CD quality sound. Today most people know this format as MP3. MPEG-4 was created to stream DVD quality video at lower data rates and smaller file sizes. MPEG-4 supports video/audio "objects", 3D content, sprites, text and other media types. MPEG-4 has become extremely popular due to the ability to fit a two-hour movie to a CD file retaining comparatively high quality. MPEG-7 describes multimedia content. MPEG-21 is supposed to become a standard as a multimedia framework.

6 MPEG The major advantage of MPEG compared to other video and audio coding formats is that MPEG files are much smaller for the same quality. This is because MPEG uses very sophisticated compression techniques.

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